I get an intermittent popping sound when the defroster is on. It happens mostly in 2nd gear. And when I shift from 1st to second, the engine backfires. I called to ask about the the popping sound and the service writer said it was "normal." I let it go at that but I have a hard time believing this is "normal." I don't buy it. No car I have ever driven has had this happen. Service guy asked what gas I was using I told him the recommended kind----91 octane.
Does anyone out there have the same problem?
Never heard a popping sound with or without the defroster on much less the engine backfiring. This needs to be looked at by someone who will listen to you. Maybe call a dealership in another city and get their opinion?
Good luck and be careful out there,
Pops and Carlito